* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
.Helper {
  margin-top: 90px;
}
a {
  color: inherit;
  text-decoration: none;
  background-color: transparent;
}
.help-wrapper {
  padding: 10px 0;
}
.help-main {
  max-width: 1200px;
  margin: 0 auto;
  font-size: 0;
  display: flex;
  justify-content: space-between;
}
.help-side {
  width: 23%;
  color: #666;
  padding-bottom: 20px;
  display: inline-block;
  vertical-align: top;
  margin-right: 10px;
}
.help-side .side-item {
  width: 100%;
  background-color: #fff;
  border-bottom: 1px solid #f0f0f0;
  padding-top: 10px;
  padding-bottom: 10px;
}
.side-item .side-title {
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #f2f2f2;
}
.side-item .side-title p {
  margin: 0;
  font-size: 18px;
  color: #000;
}
.side-list {
  padding: 20px 0;
  font-size: 12px;
  min-height: 200px;
  overflow-y: auto;
}
.side-list li {
  position: relative;
  height: auto;
  line-height: 1;
}
.side-list li {
  cursor: pointer;
  width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.side-list li::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 0px;
  background-color: #e9edf0;
  width: 1px;
  height: 100%;
}
.side-list li a {
  width: 100%;
  display: inline-block;
  padding-left: 32px;
  padding-right: 25px;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  position: relative;
  padding-top: 15px;
  font-size: 14px;
  padding-bottom: 15px;
}
.side-list .on a {
  color: #5282f0;
}
.side-list .on a::after {
  background-color: #5282f0;
}
.side-list li a::after {
  content: "";
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  background-color: #dadde0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
}
.help-contain {
  /* width: 77%; */
  flex: 1;
  display: inline-block;
  vertical-align: top;
  background-color: #fff;
}
.help-contain .article {
  padding: 20px 40px;
}
.text-center {
  text-align: center;
}
.help-contain .article .title {
  font-size: 20px;
  font-weight: normal;
  line-height: 2;
}
.help-contain .article .date {
  color: #aaa;
  font-size: 14px;
}
.help-contain .article .c-line {
  margin-top: 10px;
  margin-bottom: 15px;
}
.c-line {
  background: #f2f2f2;
  width: 100%;
  height: 1px;
}
.help-contain .article .article-content {
  font-size: 0.9rem;
  color: #333;
  line-height: 1.7rem;
}
.side-list::-webkit-scrollbar {
  width: 2px;
  height: 1px;
}
.side-list::-webkit-scrollbar-thumb {
  border-radius: 10px;
  box-shadow: inset 0 0 1px rgba(228, 224, 224, 0.2);
  background: #999;
}
.side-list::-webkit-scrollbar-track {
  box-shadow: inset 0 0 1px rgba(243, 237, 237, 0.2);
  border-radius: 10px;
  background: #999;
}
